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GWA industrial heat exchangers ( Jiangsu ) Co., Ltd.
Add: 99#, Chuangye Rd., Jinxi Industrial garden, Jintan city, Jiangsu Province, CN.
Phone: +86 (0) 519-68080237
Fax: +86 (0) 519-68080261
Phone: 18796908666
Website:www.jimdennys.net
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Evaporative Condenser repair and maintenance
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| publish time：2013.11.16 read： |
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As the refrigerant in the condenser metallurgical equipment , metallurgy and chemical industry is one of the main heat exchange equipment , the application is very popular. The evaporative condenser as a new energy-saving and consumption of heat transfer equipment, has been tremendous in recent years is the development and wide application .
Metallurgical equipment evaporative condenser during operation the biggest problem is the formation of scale and dirt , and evaporates due to its working mechanism , it is more likely than other types of condenser fouling . Therefore, the evaporative condenser maintenance , mainly concentrated in how to solve the problem of scaling evaporative condenser . As the water on the surface of the tube constantly evaporating easy to knot evaporative condensers in the outdoor work environment , and the hot and humid , easy corrosion , so the upper case and lower case should ensure adequate zinc thickness. As the water on the surface of the tube constantly evaporating easy to scale , and the scale will greatly reduce evaporative condenser heat transfer performance , therefore, can take the following steps to solve the problem of scaling evaporative condenser . In normal operation, the pipeline to keep the equipment clean , we should always do preventive testing to maximize evaporative condenser Maintenance .
Cantilever -type evaporative condenser : the host starts and stops the process, since the condenser coils pressure difference exists and the temperature difference , resulting in copper superstrate produce stretching effect due to copper, very different expansion coefficients quality scale , which are cantilever -type evaporative condenser fouling off function automatically . During operation of the refrigerant in the condenser occurs in high-frequency vibration generated two-phase converter , it is difficult to form the core scale , the scale can not be attached to the wall lead ; condenser when making pre- membrane scaling treatment, can effectively prevent dirt deposited on the surface of the crystal in the brass ; using a small continuous drainage device, the cooling water circulation of concentration of calcium ions within a certain range , effectively prevent deposition of scale quality ; setting precooler , the condenser tube surface evaporation temperature below 50 ℃ , using a large amount of water , intensive water distribution to ensure that the condenser tube surface moments of the water film coating, no dry spot . When the surface of the heat exchanger coil temperature is below 50 ℃ , the resulting scale osteoporosis , easy to wash , when the surface temperature is higher than 50 ℃ , the resulting quality of hard scale , difficult to remove. ( 5 ) Set the weir plate on the higher temperature condenser water buildup , which can effectively prevent condenser fouling. |
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